S1JLH Equivalent & Substitute Parts

Part Overview

The S1JLH is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 600 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package (DO-219AB). This component is classified as "Not For New Designs," indicating it has reached end-of-life status in the manufacturer's product portfolio. Identification of equivalent and substitute parts is necessary for design continuity, legacy system support, and procurement flexibility when the primary part becomes unavailable.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 1 A	V
Reverse Recovery Time (trr)	1.8	µs
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Capacitance @ Vr, F	9	pF @ 4V, 1MHz
Mounting Type	Surface Mount	—
Package / Case	DO-219AB	—
Operating Temperature - Junction	-55 to 175	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the S1JLH is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
Reverse Recovery Time (trr): 1.8 µs
Current - Reverse Leakage @ Vr: 5 µA @ 600 V
Capacitance @ Vr, F: 9 pF @ 4V, 1MHz

Mechanical Parameters (Must Match):

Mounting Type: Surface Mount
Package / Case: DO-219AB (Sub SMA)

Environmental & Compliance Parameters (Must Match):

Operating Temperature - Junction: -55°C to 175°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are classified into two categories:

Category 1: Parametric Equivalents (Identical Electrical & Mechanical Specifications) Parts that maintain all electrical parameters, package type, and operating temperature range. These parts are direct functional replacements within the same physical footprint and thermal envelope.

Category 2: Manufacturer Recommended Substitute (Different Package) The S1JLWH represents an active alternative with identical electrical performance but in a different package format (SOD-123W instead of Sub SMA). This substitution requires PCB layout modification but provides access to an active product line.

Parameter Comparison

Parameter	S1JLH	S1JLWH	S1JL	S1JL MHG	S1JL MQG	S1JL MTG	S1JL RFG	S1JL RHG	S1JL RQG	S1JL RTG
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A	1 A	1 A	1 A	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A
Reverse Recovery Time (trr)	1.8 µs	Not specified	1.8 µs	1.8 µs	1.8 µs	1.8 µs	1.8 µs	1.8 µs	1.8 µs	1.8 µs
Current - Reverse Leakage @ Vr	5 µA @ 600 V	1 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V
Capacitance @ Vr, F	9 pF @ 4V, 1MHz	Not specified	9 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz
Package / Case	DO-219AB (Sub SMA)	SOD-123W	DO-219AB (Sub SMA)	DO-219AB (Sub SMA)	DO-219AB (Sub SMA)	DO-219AB (Sub SMA)	DO-219AB (Sub SMA)	DO-219AB (Sub SMA)	DO-219AB (Sub SMA)	DO-219AB (Sub SMA)
Operating Temperature - Junction	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C	-55 to 175°C
Product Status	Not For New Designs	Active	Not For New Designs	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Footprint Replacement (Same PCB Layout):

The parametric equivalent parts S1JL, S1JL MHG, S1JL MQG, S1JL MTG, S1JL RFG, S1JL RHG, S1JL RQG, and S1JL RTG are functionally identical to the S1JLH across all electrical and mechanical specifications. These parts maintain the DO-219AB (Sub SMA) package format and are suitable for direct substitution without PCB modification. Among these options, the active product status variants (S1JL MHG, S1JL MQG, S1JL MTG, S1JL RFG, S1JL RHG, S1JL RQG, S1JL RTG) are preferred for new procurement due to ongoing manufacturer support and availability assurance.

For Active Product Line Access (Package Change Required):

The S1JLWH is the manufacturer-recommended substitute offering active product status with identical electrical performance (600 V, 1 A, 1.1 V forward voltage). This part is packaged in SOD-123W format instead of Sub SMA, requiring PCB layout redesign. The S1JLWH exhibits lower reverse leakage current (1 µA versus 5 µA), representing an improvement in leakage characteristics. Selection of S1JLWH is appropriate when design flexibility permits package migration and when long-term product availability is a priority.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage processes. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0080, maintaining consistent regulatory classification.

Frequently Asked Questions (FAQ)

Q: Can S1JL variants be used as direct replacements for S1JLH without PCB modification?

A: Yes. The S1JL, S1JL MHG, S1JL MQG, S1JL MTG, S1JL RFG, S1JL RHG, S1JL RQG, and S1JL RTG parts share identical package format (DO-219AB Sub SMA), electrical ratings (600 V, 1 A), and operating temperature range (-55°C to 175°C). These parts are direct functional replacements requiring no PCB layout changes.

Q: What is the difference between S1JL and S1JL MHG?

A: Both parts are electrically and mechanically identical, sharing the same 600 V rating, 1 A current, 1.1 V forward voltage, and DO-219AB package. The primary distinction is product status: S1JL is classified as "Not For New Designs," while S1JL MHG is Active. For new procurement, S1JL MHG is preferred due to ongoing manufacturer support.

Q: Why is S1JLWH listed as a substitute if it uses a different package?

A: S1JLWH is designated as the manufacturer-recommended substitute because it represents the active product line continuation with identical electrical specifications. While the SOD-123W package differs from the Sub SMA format, this substitution provides access to a supported product with equivalent performance. PCB redesign is required for implementation.

Q: Does the S1JLWH have different electrical performance than S1JLH?

A: The S1JLWH maintains the same voltage rating (600 V), current rating (1 A), and forward voltage (1.1 V @ 1 A). The reverse leakage current is lower in S1JLWH (1 µA versus 5 µA at 600 V), representing an improvement. Reverse recovery time is not specified for S1JLWH, while S1JLH specifies 1.8 µs.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed—S1JL, S1JL MHG, S1JL MQG, S1JL MTG, S1JL RFG, S1JL RHG, S1JL RQG, S1JL RTG, and S1JLWH—are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute part offers the best long-term availability?

A: The S1JLWH is the manufacturer-recommended active product with the highest inventory availability (29,850 pcs). Among the parametric equivalents in Sub SMA package, S1JL MHG, S1JL MQG, S1JL MTG, S1JL RFG, S1JL RHG, S1JL RQG, and S1JL RTG all carry Active product status, providing ongoing manufacturer support compared to the "Not For New Designs" classification of S1JLH and S1JL.

Q: Can I use multiple substitute parts interchangeably in the same design?

A: Yes. All parametric equivalent parts (S1JL variants) are interchangeable within the same PCB layout due to identical package format and electrical specifications. However, mixing S1JLWH (SOD-123W package) with Sub SMA parts in the same design requires separate PCB footprints and is not recommended for single-design implementations.

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